Use IERS conventions 2010
IERS Earth Orientation Data are now available only with respect to IERS
conventions 2010 and not IERS conventions 2003 anymore.
The changes are mainly the precession model which is now IAU-2006 (the nutation model is still IAU-2000A).
The ITRF frame is also ITRF 2008 now.
(from redmine: issue id 90, created on 2012-04-16, closed on 2012-04-16)